1998 mercaptans, thioethers mercaptans, thioethers (benzene compounds) Q 0580
-100Polysulfurated Branched Molecules Containing Functionalized m-Phenylene Sulfides.-Various m-phenylene sulfides are selectively prepared from 1,3,5-trisubstituted benzenes such as (I) with thiol (II). Additionally, an efficient sequence for the synthesis of dendrones (VII) and (VIII) by Cu 2 O-catalyzed coupling with p-thiocresol (V) and subsequent deprotection of the thiomethyl groups with tBuSNa is reported. -( VAN BIERBEEK, A.; GINGRAS, M.; Tetrahedron Lett. 39 (1998) 35, 6283-6286; Lab. Supramol. Chem. Catal., Fac. Sci., Univ. Libre Bruxelles, B-1050 Bruxelles, Belg.; EN)
Efficient Formation of Aromatic Thiols from Thiomethylated Precursors.-Various aryl methyl sulfides are deprotected with t-butyl thiolate, using an optimized procedure. The corresponding aromatic thiols are obtained in ¿95% yield without significant formation of by-products, especially disulfides.
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